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Finding the Fourth Proportional to 93,255.31, 139,924.32 and 48,871.53

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Solution

The fourth proportional to 93,255.31, 139,924.32 and 48,871.53 is: 73,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,255.31 : 139,924.32 = 48,871.53 : x
  2. Step 2: Convert to fraction form
    93,255.31/139,924.32 = 48,871.53/x
  3. Step 3: Cross multiply
    93,255.31x = 139,924.32 × 48,871.53
  4. Step 4: Simplify right side
    93,255.31x = 6,838,314,902.99
  5. Step 5: Solve for x
    x = 6,838,314,902.99/93,255.31
  6. Step 6: Final answer
    x = 73,328.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.